Spool



(No Model.)

I. CROSS.

SPOOL.

Patented Mar. 20, 1888.

201572433 sea %1W ym, 5,

UNITED STATES PATENT OFFICE.

IRA GROSS, OF NASHUA, NEW HAMPSHIRE.

SPOOL.

SPECIFICATION forming part of Letters Patent No. 379,633, dated March20, 1888.

Application filed September 26, 1887. Serial No. 250,726. (No model.)

To aZZ whom it may concern.-

Beit known that I, IRA ORoss, of Nashua, county of Hillsborough, andState of New Hampshire, have invented an Improvement in Spools, of whichthe following description, in connection with the accompanyingdrawings,is a' specificatiomlikeletters on the drawings representinglike parts.

This invention has for its object to increase the strength ofspool-heads; and my invention consists, essentially, in a spool the headof which between the two layers of material of which the head iscomposed is strengthened by a metallic annulus, which enters one or bothof the said layers.

Figure 1, in elevation, partly broken out, represents a spool embodyingmy invention. Figs. 2 and 3 show modified forms of my invention, andFig. 4 shows yet another modification.

The barrel or body A of the spool, of any usual material, has two heads,B B, each composed of two layers of wood or other material united to thebarrel, preferably by screwthreads, as at a. The two pieces of materialforming each head are grooved or chambered to receive a metallicannulus, Z),which may be either of flat metal, as in Fig. 1, or of wire,as in Fig. 2' or, it desired, I may employ two pieces of wire, as inFig. 3. By letting the metallic annulus into each half of the head thesaid parts are less liable to split than if the annulus entered whollyinto one layer of the material forming a part of the head, as in Fig. 4;yet the annulus may enter but one layer.

To further strengthen the head the two parts thereof may be gluedtogether,and I may also further unite the parts of each head by means ofbolts, nails, or rivets, as 0, they passing through the metal annulus,as in Fig. 1, or at one side of it, as in Fig. 2.

The employment of the annulus entering a groove in one or both of theheads prevents splitting, which would not be the case if a metal washerof the same diameter of the heads were placed between the two pieces ofwhich each head is composed.

I claim 1. Aspool,substantially as herein described, it consisting of abarrel or body, A, heads B B, composed each of layers of material andshaped and put together to leave a groove between them, and a metallicstrengthening-annulus of less diameter than the heads and entering thesaid groove between the said layers, for the purposes described. I

2. The barrel or body A and the heads B, composed each of two parts orlayers, a strengthening-annulus placed between the said halves andembedded therein, combined with rivets to unite the said parts orlayers, all substantially as described.

In testimony whereof Iliave signed myname to this specification in thepresence of two subscribing witnesses.

IRA CROSS.

Witnesses:

GUY O. MILLs, E. J. Core

